Final answer:
Yes, there would be a net flow of water toward the inside of the cell if it had a much higher NaCl concentration than the external environment. Osmosis would drive water into the cell to balance the solute concentrations. If the glucose concentration is the same inside and outside, generally no net flow of glucose occurs unless facilitated by specific transport mechanisms.
Step-by-step explanation:
If the concentration of NaCl outside the cell is 0.40 M and inside the cell is 25 M, there would indeed be a net flow of water in one direction. This is because water potential inside the cell would decrease due to the high solute concentration, and water would move from areas of higher water potential to lower water potential (from outside to inside the cell) in an attempt to reach equilibrium. This process is known as osmosis, which is the diffusion of water across a semipermeable membrane.
However, a concentration of 25 M NaCl inside the cell seems highly improbable since it's physiologically unfeasible for cells to reach such high internal concentrations. It is possible that there's a typo in the question. Assuming a more reasonable internal concentration, such as 0.25 M NaCl, there would still be a net flow of water into the cell, as the outside concentration is higher, making it hypertonic to the cell's interior.
If the concentration of glucose was equal inside and outside of the cell, there would generally not be a net flow of glucose across the cell membrane since the concentrations are the same, and diffusion occurs from areas of higher concentration to areas of lower concentration until equilibrium is reached. However, in the case of glucose or other substances that cannot freely pass through the cell membrane, facilitated diffusion or active transport mechanisms may still cause net movement if those processes are active.